Determine the maturity date, interest at maturity, and maturity value for each of the following notes. (Round to the nearest cent.)
a. A 60-day, 10 percent, $2,400 note dated January 5 received from S. William for granting a time extension on a past-due account.
b. A 60-day, 12 percent, $1,500 note dated March 9 received from E. Watson for grant- ing a time extension on a past-due account.